The Houston Chronicle reports via a Texas state representative and another unnamed source that Sandra Bland told jail staffers in Waller County that she had previously attempted suicide:

The information was discussed in a closed meeting with dozens of elected officials and law enforcement on Tuesday, shortly before authorities made public the video of the arrest of Sandra Bland by a Texas Department of Public Safety trooper on July 10. She was taken to the jail after her arrest.

Bland disclosed on a form at the jail that she previously had attempted suicide over that past year, although she also indicated she was not feeling suicidal at the time of her arrest, according to officials who attended the Tuesday meeting with local and state leaders investigating the case.